Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:25:20 2012 Optimize a model with 303 rows, 224 columns and 979 nonzeros Presolve time: 0.00s Presolved: 303 rows, 224 columns, 979 nonzeros Variable types: 0 continuous, 224 integer (224 binary) Found heuristic solution: objective 65.0000000 Found heuristic solution: objective 64.0000000 Root relaxation: objective 0.000000e+00, 117 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 73 64.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s 0 0 0.71748 0 76 54.00000 0.71748 98.7% - 0s H 0 0 51.0000000 0.71748 98.6% - 0s 0 0 0.73846 0 77 51.00000 0.73846 98.6% - 0s H 0 0 47.0000000 0.73846 98.4% - 0s 0 0 0.85959 0 78 47.00000 0.85959 98.2% - 0s 0 0 0.89266 0 77 47.00000 0.89266 98.1% - 0s 0 0 0.94769 0 77 47.00000 0.94769 98.0% - 0s 0 0 0.94769 0 78 47.00000 0.94769 98.0% - 0s 0 0 0.94769 0 77 47.00000 0.94769 98.0% - 0s 0 2 0.94769 0 77 47.00000 0.94769 98.0% - 0s * 36 36 21 38.0000000 4.23620 88.9% 27.0 0s * 42 34 21 37.0000000 4.23620 88.6% 24.3 0s * 102 61 14 29.0000000 6.97368 76.0% 25.3 0s * 634 225 24 28.0000000 14.23760 49.2% 22.1 0s * 778 240 25 27.0000000 14.23760 47.3% 23.3 0s * 853 203 21 26.0000000 14.23760 45.2% 23.1 0s Explored 1903 nodes (40856 simplex iterations) in 1.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%